Kmart shoppers are obsessed with this $4 hair product for perfect curls

Kmart fanatics are going wild for a new $4 product which shoppers claim is just as good as a $599 Dyson Hair Wrap.

The budget hair product, a heatless hair roller, has been dubbed a "miracle" curler by TikTokers, with users flaunting their salon blow-out results online.

The heatless hair roller works while you sleep and promises "gorgeous curls without damaging your tresses".

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It works by wrapping your hair around the roller and tying it at the ends like pigtails with scrunchies, and securing it with the included claw clip at the top of your hair.

Kmart addicts claim they are waking up with incredible, bouncy curls after using the budget product.

TikTok star Isiah Palmer tested the product in a video and revealed her perfectly styled hair after sleeping in it.

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"It was actually really comfy to sleep in, surprisingly," Isiah told her followers.

"I looked so good! My hair looked really, really good. It's like a literal salon-blow dry and it was minimal effort."

She added: "I cannot believe this was only $4 to achieve… it actually held all day. I felt so good."

TikTok fans were shocked by the results and vowed to rush to Kmart to buy it themselves.

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"From the videos I've seen, a lot have said it's as good as doing a blowout on the Dyson air wrap," one person wrote online.

Another gushed: "It's sooo good, I am hopeless with a curling iron and this is giving me the low-key curls of my dreams! I'm going to sleep with it in again!"

Some users also claimed you can get similar results using a dressing gown or bathrobe tie.